*
* This code is GPL
*
- * $Id: mtdpart.c,v 1.51 2004/11/16 18:28:59 dwmw2 Exp $
+ * $Id: mtdpart.c,v 1.55 2005/11/07 11:14:20 gleixner Exp $
*
* 02-21-2002 Thomas Gleixner <gleixner@autronix.de>
* added support for read_oob, write_oob
- */
+ */
#include <linux/module.h>
#include <linux/types.h>
*/
#define PART(x) ((struct mtd_part *)(x))
-
-/*
+
+/*
* MTD methods which simply translate the effective address and pass through
* to the _real_ device.
*/
-static int part_read (struct mtd_info *mtd, loff_t from, size_t len,
+static int part_read (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
struct mtd_part *part = PART(mtd);
len = 0;
else if (from + len > mtd->size)
len = mtd->size - from;
- if (part->master->read_ecc == NULL)
- return part->master->read (part->master, from + part->offset,
+ if (part->master->read_ecc == NULL)
+ return part->master->read (part->master, from + part->offset,
len, retlen, buf);
else
- return part->master->read_ecc (part->master, from + part->offset,
+ return part->master->read_ecc (part->master, from + part->offset,
len, retlen, buf, NULL, &mtd->oobinfo);
}
-static int part_point (struct mtd_info *mtd, loff_t from, size_t len,
+static int part_point (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char **buf)
{
struct mtd_part *part = PART(mtd);
len = 0;
else if (from + len > mtd->size)
len = mtd->size - from;
- return part->master->point (part->master, from + part->offset,
+ return part->master->point (part->master, from + part->offset,
len, retlen, buf);
}
static void part_unpoint (struct mtd_info *mtd, u_char *addr, loff_t from, size_t len)
}
-static int part_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
+static int part_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel)
{
struct mtd_part *part = PART(mtd);
len = 0;
else if (from + len > mtd->size)
len = mtd->size - from;
- return part->master->read_ecc (part->master, from + part->offset,
+ return part->master->read_ecc (part->master, from + part->offset,
len, retlen, buf, eccbuf, oobsel);
}
-static int part_read_oob (struct mtd_info *mtd, loff_t from, size_t len,
+static int part_read_oob (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
struct mtd_part *part = PART(mtd);
len = 0;
else if (from + len > mtd->size)
len = mtd->size - from;
- return part->master->read_oob (part->master, from + part->offset,
+ return part->master->read_oob (part->master, from + part->offset,
len, retlen, buf);
}
-static int part_read_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len,
+static int part_read_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
struct mtd_part *part = PART(mtd);
- return part->master->read_user_prot_reg (part->master, from,
+ return part->master->read_user_prot_reg (part->master, from,
len, retlen, buf);
}
-static int part_read_fact_prot_reg (struct mtd_info *mtd, loff_t from, size_t len,
+static int part_get_user_prot_info (struct mtd_info *mtd,
+ struct otp_info *buf, size_t len)
+{
+ struct mtd_part *part = PART(mtd);
+ return part->master->get_user_prot_info (part->master, buf, len);
+}
+
+static int part_read_fact_prot_reg (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
struct mtd_part *part = PART(mtd);
- return part->master->read_fact_prot_reg (part->master, from,
+ return part->master->read_fact_prot_reg (part->master, from,
len, retlen, buf);
}
+static int part_get_fact_prot_info (struct mtd_info *mtd,
+ struct otp_info *buf, size_t len)
+{
+ struct mtd_part *part = PART(mtd);
+ return part->master->get_fact_prot_info (part->master, buf, len);
+}
+
static int part_write (struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, const u_char *buf)
{
len = 0;
else if (to + len > mtd->size)
len = mtd->size - to;
- if (part->master->write_ecc == NULL)
- return part->master->write (part->master, to + part->offset,
+ if (part->master->write_ecc == NULL)
+ return part->master->write (part->master, to + part->offset,
len, retlen, buf);
else
- return part->master->write_ecc (part->master, to + part->offset,
+ return part->master->write_ecc (part->master, to + part->offset,
len, retlen, buf, NULL, &mtd->oobinfo);
-
+
}
static int part_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
len = 0;
else if (to + len > mtd->size)
len = mtd->size - to;
- return part->master->write_ecc (part->master, to + part->offset,
+ return part->master->write_ecc (part->master, to + part->offset,
len, retlen, buf, eccbuf, oobsel);
}
len = 0;
else if (to + len > mtd->size)
len = mtd->size - to;
- return part->master->write_oob (part->master, to + part->offset,
+ return part->master->write_oob (part->master, to + part->offset,
len, retlen, buf);
}
-static int part_write_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len,
+static int part_write_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
struct mtd_part *part = PART(mtd);
- return part->master->write_user_prot_reg (part->master, from,
+ return part->master->write_user_prot_reg (part->master, from,
len, retlen, buf);
}
+static int part_lock_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len)
+{
+ struct mtd_part *part = PART(mtd);
+ return part->master->lock_user_prot_reg (part->master, from, len);
+}
+
static int part_writev (struct mtd_info *mtd, const struct kvec *vecs,
unsigned long count, loff_t to, size_t *retlen)
{
struct mtd_part *part = PART(mtd);
if (!(mtd->flags & MTD_WRITEABLE))
return -EROFS;
- if (part->master->writev_ecc == NULL)
+ if (part->master->writev_ecc == NULL)
return part->master->writev (part->master, vecs, count,
to + part->offset, retlen);
else
unsigned long count, loff_t from, size_t *retlen)
{
struct mtd_part *part = PART(mtd);
- if (part->master->readv_ecc == NULL)
+ if (part->master->readv_ecc == NULL)
return part->master->readv (part->master, vecs, count,
from + part->offset, retlen);
else
return part->master->readv_ecc (part->master, vecs, count,
- from + part->offset, retlen,
+ from + part->offset, retlen,
NULL, &mtd->oobinfo);
}
if (oobsel == NULL)
oobsel = &mtd->oobinfo;
return part->master->readv_ecc (part->master, vecs, count,
- from + part->offset, retlen,
+ from + part->offset, retlen,
eccbuf, oobsel);
}
static int part_lock (struct mtd_info *mtd, loff_t ofs, size_t len)
{
struct mtd_part *part = PART(mtd);
- if ((len + ofs) > mtd->size)
+ if ((len + ofs) > mtd->size)
return -EINVAL;
return part->master->lock(part->master, ofs + part->offset, len);
}
static int part_unlock (struct mtd_info *mtd, loff_t ofs, size_t len)
{
struct mtd_part *part = PART(mtd);
- if ((len + ofs) > mtd->size)
+ if ((len + ofs) > mtd->size)
return -EINVAL;
return part->master->unlock(part->master, ofs + part->offset, len);
}
return part->master->block_markbad(part->master, ofs);
}
-/*
- * This function unregisters and destroy all slave MTD objects which are
+/*
+ * This function unregisters and destroy all slave MTD objects which are
* attached to the given master MTD object.
*/
* (Q: should we register the master MTD object as well?)
*/
-int add_mtd_partitions(struct mtd_info *master,
+int add_mtd_partitions(struct mtd_info *master,
const struct mtd_partition *parts,
int nbparts)
{
slave->mtd.point = part_point;
slave->mtd.unpoint = part_unpoint;
}
-
+
if (master->read_ecc)
slave->mtd.read_ecc = part_read_ecc;
if (master->write_ecc)
slave->mtd.read_fact_prot_reg = part_read_fact_prot_reg;
if(master->write_user_prot_reg)
slave->mtd.write_user_prot_reg = part_write_user_prot_reg;
+ if(master->lock_user_prot_reg)
+ slave->mtd.lock_user_prot_reg = part_lock_user_prot_reg;
+ if(master->get_user_prot_info)
+ slave->mtd.get_user_prot_info = part_get_user_prot_info;
+ if(master->get_fact_prot_info)
+ slave->mtd.get_fact_prot_info = part_get_fact_prot_info;
if (master->sync)
slave->mtd.sync = part_sync;
if (!i && master->suspend && master->resume) {
if (slave->offset == MTDPART_OFS_APPEND)
slave->offset = cur_offset;
if (slave->offset == MTDPART_OFS_NXTBLK) {
- u_int32_t emask = master->erasesize-1;
- slave->offset = (cur_offset + emask) & ~emask;
- if (slave->offset != cur_offset) {
+ slave->offset = cur_offset;
+ if ((cur_offset % master->erasesize) != 0) {
+ /* Round up to next erasesize */
+ slave->offset = ((cur_offset / master->erasesize) + 1) * master->erasesize;
printk(KERN_NOTICE "Moving partition %d: "
"0x%08x -> 0x%08x\n", i,
cur_offset, slave->offset);
if (slave->mtd.size == MTDPART_SIZ_FULL)
slave->mtd.size = master->size - slave->offset;
cur_offset = slave->offset + slave->mtd.size;
-
- printk (KERN_NOTICE "0x%08x-0x%08x : \"%s\"\n", slave->offset,
+
+ printk (KERN_NOTICE "0x%08x-0x%08x : \"%s\"\n", slave->offset,
slave->offset + slave->mtd.size, slave->mtd.name);
/* let's do some sanity checks */
/* Deal with variable erase size stuff */
int i;
struct mtd_erase_region_info *regions = master->eraseregions;
-
+
/* Find the first erase regions which is part of this partition. */
for (i=0; i < master->numeraseregions && slave->offset >= regions[i].offset; i++)
;
slave->mtd.erasesize = master->erasesize;
}
- if ((slave->mtd.flags & MTD_WRITEABLE) &&
+ if ((slave->mtd.flags & MTD_WRITEABLE) &&
(slave->offset % slave->mtd.erasesize)) {
/* Doesn't start on a boundary of major erase size */
/* FIXME: Let it be writable if it is on a boundary of _minor_ erase size though */
printk ("mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-only\n",
parts[i].name);
}
- if ((slave->mtd.flags & MTD_WRITEABLE) &&
+ if ((slave->mtd.flags & MTD_WRITEABLE) &&
(slave->mtd.size % slave->mtd.erasesize)) {
slave->mtd.flags &= ~MTD_WRITEABLE;
printk ("mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n",
parts[i].name);
}
- /* copy oobinfo from master */
+ /* copy oobinfo from master */
memcpy(&slave->mtd.oobinfo, &master->oobinfo, sizeof(slave->mtd.oobinfo));
if(parts[i].mtdp)
return 0;
}
-int parse_mtd_partitions(struct mtd_info *master, const char **types,
+int parse_mtd_partitions(struct mtd_info *master, const char **types,
struct mtd_partition **pparts, unsigned long origin)
{
struct mtd_part_parser *parser;
int ret = 0;
-
+
for ( ; ret <= 0 && *types; types++) {
parser = get_partition_parser(*types);
#ifdef CONFIG_KMOD
}
ret = (*parser->parse_fn)(master, pparts, origin);
if (ret > 0) {
- printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n",
+ printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n",
ret, parser->name, master->name);
}
put_partition_parser(parser);
git://git.onelab.eu / linux-2.6.git / blobdiff